Rotating electric machine

By using the first and second elastic parts of the mounting component to clamp the temperature measurement area of ​​the rotary motor, the problem of unstable fixing of the temperature detector is solved, the accuracy and reliability of temperature detection are improved, and the temperature measurement performance is enhanced.

CN121844470APending Publication Date: 2026-04-10ASTEMO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-15
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In the existing technology, the temperature detector of the rotating motor is fixed and unstable, which affects the accuracy and reliability of temperature detection.

Method used

An installation component, including a first elastic part and a second elastic part, is used to apply force to the element part and wiring part of the temperature detector, respectively. The temperature measuring area is clamped from both sides by the first side and the second side to ensure the stable fixation of the temperature detector.

Benefits of technology

This design achieves stable fixation of the temperature detector, improves the accuracy and reliability of temperature detection, suppresses the swaying of the wiring section, and enhances temperature measurement performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The rotating electrical machine includes: a rotor; an annular stator core disposed so as to surround at least a portion of the rotor; a stator winding wound around the stator core; a bus bar to which the stator winding is connected; a temperature-measured region provided on any one of the rotor, the stator core, the stator winding, and the bus bar; a temperature detector having an element portion disposed in contact with the region to be measured in temperature, and a wiring connected to the element portion; and a mounting member for mounting the temperature detector in a region where the temperature is measured, the element part and the region where the temperature is measured being arranged side by side in the Z-axis direction, the mounting member being provided with: a first elastic part that urges an element first surface, which is a surface of the element part substantially perpendicular to the Z-axis direction, in the negative direction of the Z-axis where the region where the temperature is measured is arranged; a first base part which is a surface substantially parallel to the element first surface and is connected to the first elastic part; side sections which are arranged on both sides in a Y-axis direction which is a direction orthogonal to the Z-axis direction and which is the width direction of the element section, and which are connected to the first base section; and a leg part which is connected to the side part, is in contact with the region to be subjected to temperature measurement from a direction opposite to the element part, and sandwiches the element part and the region to be subjected to temperature measurement together with the first elastic part from both sides in the Z-axis direction.
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Description

Technical Field

[0001] This invention relates to a rotary electric motor. Background Technology

[0002] Rotary motors experience temperature increases during operation, and unchecked temperature rise can lead to performance degradation or motor malfunction. Therefore, methods for measuring the temperature of rotary motors and using the measured temperature to control the motor are widely employed. Patent Document 1 discloses a stator for a rotary motor comprising: a stator core having multiple slots; coils inserted into the slots; a busbar unit having at least one busbar electrically connected to the coils and a retaining member holding the busbars; and a temperature detection unit having a temperature detection section for detecting the temperature of the coils. In the stator, the retaining member has a recess formed such that the temperature detection section is embedded therein, the busbar has an exposed portion protruding from the recess, the exposed portion being positioned to contact the temperature detection section embedded in the recess, the recess having a pair of inner wall surfaces facing each other and sandwiching the temperature detection section embedded therein, at least one of the pair of inner wall surfaces including at least one protrusion protruding toward the temperature detection section embedded in the recess, the temperature detection section being pressed between the pair of inner wall surfaces.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2020-054103 Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In the invention described in Patent Document 1, there is room for improvement in fixing the temperature detector.

[0008] Methods for solving problems

[0009] A rotary electric motor according to a first aspect of the present invention comprises: a rotor; an annular stator core arranged to surround at least a portion of the rotor; a stator winding wound around the stator core; a busbar connected to the stator winding; a temperature measuring region disposed on any one of the rotor, the stator core, the stator winding, and the busbar; a temperature detector having an element portion disposed in contact with the temperature measuring region and wiring connected to the element portion; and a mounting member for mounting the temperature detector to the temperature measuring region, the element portion and the temperature measuring region being arranged in the Z-axis direction, the mounting member comprising: a... 1. An elastic portion that applies force to the first surface of the element portion, which is approximately perpendicular to the Z-axis direction, in the negative direction of the Z-axis where the temperature measurement area is disposed; 2. A first base portion that is approximately parallel to the first surface of the element and is connected to the first elastic portion; 3. Side portions disposed on both sides in the Y-axis direction and connected to the first base portion, wherein the Y-axis direction is orthogonal to the Z-axis direction and is the width direction of the element portion; and 4. Leg portions connected to the side portions that contact the temperature measurement area from the opposite direction to the element portion and, together with the first elastic portion, clamp the element portion and the temperature measurement area from both sides in the Z-axis direction.

[0010] The effects of the invention

[0011] According to the present invention, the temperature detector and the temperature measurement area can be stably fixed by means of mounting components. Attached Figure Description

[0012] Figure 1 It is a 3D diagram of a rotary electric motor.

[0013] Figure 2 This is an enlarged view of the busbar.

[0014] Figure 3 It is a 3D view of the temperature detector and its mounting components.

[0015] Figure 4 This is a top view of the temperature detector and its mounting components.

[0016] Figure 5 This is a bottom view of the temperature detector and its mounting components.

[0017] Figure 6 yes Figure 4 VI-VI section diagram.

[0018] Figure 7 yes Figure 4 Section VII-VII of the diagram.

[0019] Figure 8 This is a diagram illustrating the lateral protrusion.

[0020] Figure 9 This is a diagram illustrating the first hypotenuse and the second hypotenuse.

[0021] Figure 10 This is a diagram illustrating the effect of the elastic part.

[0022] Figure 11 This is a diagram showing the arrangement of the component parts in Modified Example 1.

[0023] Figure 12 This is a diagram showing the side shape of variant example 2. Detailed Implementation

[0024] —Implementation Methods—

[0025] The following is for reference Figures 1-10 Explain the implementation method of the rotary electric motor.

[0026] Figure 1 This is a perspective view of a rotary electric machine 1. The rotary electric machine 1 includes: a rotor 2 (not shown), an annular stator core 3 arranged to surround at least a portion of the rotor 2, a stator winding 4 wound on the stator core 3, and a busbar 5 connected to the stator winding 4.

[0027] Figure 2 This is an enlarged view of busbar 5. A temperature detector 6 is installed on busbar 5 to measure its temperature. Figure 2 The lower left of the diagram shows a schematic representation of the area near the temperature detector 6. A portion of the busbar 5 is formed in a U-shape, and a portion of the straight section of this U-shape is positioned within the temperature measurement area 5A. The temperature of the temperature measurement area 5A is measured by the temperature detector 6. The temperature detector 6 is fixed to the busbar 5 by a mounting member 100. In the schematic diagram, the mounting member 100 is indicated by dashed lines. The mounting member 100 is configured to surround the temperature detector 6. Alternatively, the temperature measurement area 5A can be loosely defined, and the area where the temperature detector 6 contacts the busbar 5 can be considered as the temperature measurement area 5A. The temperature measurement area 5A is a rod-shaped area with a rectangular cross-section.

[0028] Figure 3 This is a perspective view of the temperature detector 6 and the mounting component 100. For ease of explanation, in... Figure 3 The mutually orthogonal XYZ axes will be described together later. The XYZ axes are independent of the direction of gravity or the rotation axis of rotor 2, and any axis may not be parallel to the vertical direction or the stator rotation axis. Figure 3 The mounting member 100 is shown at the lower left, with only a slight change in angle. The mounting member 100 is formed, for example, by bending a flat plate through a cutting process such as stamping.

[0029] The temperature detector 6 includes a component section 61 and a wiring section 62. The component section 61 is a cuboid, and the wiring section 62 is a continuous body with a circular or cuboid cross-section. The temperature detector 6... Figure 3 The temperature detector 6 is arranged along the X-axis within the range shown. A component portion 61 is located on the positive side of the X-axis, i.e., at the top of the temperature detector 6, and a wiring portion 62 is arranged on the negative side of the X-axis, further away from the component portion 61. The temperature detector 6 extends towards the negative side of the X-axis relative to the wiring portion 62.

[0030] The mounting member 100 includes: a first elastic portion 101, a second elastic portion 102, a first base 111, a second base 112, a third base 113, a first side portion 121, a second side portion 122, a first leg portion 131, and a second leg portion 132. The first leg portion 131 is composed of a first straight portion 131S and a first return portion 131R. The second leg portion 132 is composed of a second straight portion 132S and a second return portion 132R.

[0031] The first elastic part 101 applies force to the element part 61 of the temperature detector 6 towards the negative Z-axis. The second elastic part 102 applies force to the wiring part 62 of the temperature detector 6 towards the negative Z-axis. The first base 111, the second base 112, and the third base 113 are surfaces parallel to the XY plane. The first base 111, the second base 112, and the third base 113 connect the first side part 121 and the second side part 122. The first base 111, the second base 112, and the third base 113 are arranged on the X-axis. The arrangement order is from the positive side of the X-axis to the negative side, namely the third base 113, the first base 111, and the second base 112.

[0032] The first base 111 retains the end of the first elastic part 101 on the negative X-axis side. The second base 112 retains the end of the second elastic part 102 on the negative X-axis side. The first elastic part 101 and the second elastic part 102 are formed by holding the end of the plate parallel to the XY plane on the negative X-axis side of the first base 111 and the second base 112, and bending it towards the negative Z-axis side. The first side 121 and the second side 122 are surfaces parallel to the XZ plane. The first side 121 and the second side 122 have a symmetrical shape with the XZ plane, which is the center of the mounting member 100 in the Y-axis direction, as the plane of symmetry. The first side 121 is connected to the first base 111, the second base 112, the third base 113, and the first leg 131. The second side portion 122 is connected to the first base portion 111, the second base portion 112, the third base portion 113 and the second leg portion 132.

[0033] The first leg 131 and the second leg 132 have a symmetrical shape with the XZ plane, which is the center of the mounting member 100 in the Y-axis direction, as the plane of symmetry. The first leg 131 and the second leg 132 have the shape of the capital letter "E". The central part of the crossbars that make up the "E" and is longer than the other crossbars are the first straight part 131S and the second straight part 132S, and the rest are the first return part 131R and the second return part 132R.

[0034] Figure 4 This is a top view of the temperature detector 6 and the mounting component 100, i.e., a view taken from the Z-axis. Figure 4 In, it is shown that in Figure 3 The U-shaped generatrix 5 is not visible in the image. Furthermore, the first base 111, second base 112, third base 113, first elastic portion 101, and second elastic portion 102, which are located at the center of the mounting member 100 in the Y-axis direction, are clearly shown. The first side portion 121 and the second side portion 122 are... Figure 4 The view shows it as a long, narrow rectangular region extending along the X-axis.

[0035] The element portion 61 of the temperature detector 6 is disposed approximately at the center of the first side portion 121 and the second side portion 122, and does not contact either the first side portion 121 or the second side portion 122. Furthermore, in Figure 4 In the view, the wiring portion 62 is hidden behind the second elastic portion 102. Figure 4 The two dashed lines in the diagram represent the cross-sections on the XY and YZ planes, which will be described later.

[0036] Figure 5 This is a bottom view of the temperature detector 6 and mounting component 100, i.e., a view taken from the negative Z-axis side. Figure 5 In the diagram, most of the components of the mounting member 100 are not visible; only the first return section 131R and the second return section 132R protruding from the busbar 5 toward both sides of the Y-axis are clearly shown.

[0037] Figure 6 yes Figure 4 The VI-VI section diagram. In Figure 6 In, it is shown as follows Figure 4 The region shown is located further to the positive side of the X-axis than the second elastic part 102. Figure 6The large rectangle shown in the center is a cross-section of the temperature measurement area 5A of the busbar 5. An element portion 61 is disposed on the positive Z-axis side of the temperature measurement area 5A. A first elastic portion 101 is also disposed on the positive Z-axis side of the element portion 61. The temperature measurement area 5A and the element portion 61 are surrounded by a mounting member 100. Hereinafter, the surface on the positive Z-axis side of the element portion 61 will be referred to as the first element surface 61A, and the surface on the negative Z-axis side of the element portion 61 will be referred to as the second element surface 61B. Furthermore, the surface on the positive Z-axis side of the temperature measurement area 5A will be referred to as the first temperature measurement surface 5A1, and the surface on the negative Z-axis side of the temperature measurement area 5A will be referred to as the second temperature measurement surface 5A2.

[0038] exist Figure 6 In the diagram, five points of contact between the mounting component 100 and the temperature detector 6 and the temperature measurement area 5A are indicated by white circles. At the first contact point T1, the first elastic part 101 contacts the element part 61. The first elastic part 101 applies force to the element part 61 towards the negative Z-axis. Additionally, at... Figure 6 In the diagram, the first contact point T1 is represented as the center point 1 of the Z-axis positive side surface of the element part 61, but in reality, contact can occur not only at the center point but also in an area with width. At the second contact point T2, the lower right corner of the temperature measurement area 5A in the diagram contacts the first straight section 131S. At the third contact point T3, the second temperature measurement surface 5A2 contacts the first return section 131R. At the fourth contact point T4, the second temperature measurement surface 5A2 contacts the second return section 132R. At the fifth contact point T5, the lower left corner of the temperature measurement area 5A in the diagram contacts the second straight section 132S.

[0039] exist Figure 6 In this configuration, spaces exist between the element portion 61 and the first side portion 121, and between the element portion 61 and the second side portion 122. That is, the first side portion 121 and the second side portion 122 are respectively separated from the element portion 61 of the temperature detector 6. Because the first side portion 121 and the second side portion 122 are separated from the element portion 61, i.e., not in close contact, the element portion 61 is less susceptible to the temperature influence of the mounting member 100. In other words, the element portion 61 can accurately and responsively measure the temperature of the temperature-measuring region 5A.

[0040] Figure 7 yes Figure 4 Section VII-VII in the diagram. In this diagram, [the text abruptly ends here, likely due to an incomplete sentence Figure 6 Similarly, white circles are used to indicate the contact points between the mounting component 100 and the temperature detector 6 and the busbar 5. In this figure, for... Figure 6Identical contact points are marked with the same symbols. The temperature detector 6 includes a component portion 61 in the center of the diagram and a wiring portion 62 extending from the component portion 61 to the left side of the diagram. A first elastic portion 101 contacts the component portion 61, and a second elastic portion 102 contacts the wiring portion 62. The first elastic portion 101 and the second elastic portion 102 apply force to the temperature detector 6 towards the negative Z-axis. Figure 6 As shown, the contact point between the component portion 61 and the first elastic portion 101 is the first contact point T1. The contact point between the wiring portion 62 and the second elastic portion 102 is the sixth contact point T6.

[0041] If we compare the positions of the Z-axis positive sides of the wiring section 62 and the component section 61, then the wiring section 62 exists... Figure 7 The temperature detector 6 is positioned at a lower position in the view. Therefore, even if a force causes the temperature detector 6 to move towards the negative X-axis due to some external force, the second elastic part 102 will be stuck on the step between the wiring part 62 and the component part 61, and the movement of the temperature detector 6 towards the negative X-axis will be restricted.

[0042] like Figure 6 As shown, the contact point between the second return section 132R and the busbar 5 is the fourth contact point T4. Additionally, in Figure 6 In the view, because the depth in the X-axis direction is compressed, there is only one fourth contact point T4, but... Figure 7 In the view, there are two fourth contact points T4. Furthermore, each fourth contact point T4 is represented as a point 1 at the center of the edge, but the location of the fourth contact point T4 may not be at the center of the edge; it could also be a point of contact for the entire edge. Additionally, because... Figure 6 The fifth contact point T5 shown is located inside the second return part 132R, i.e., on the negative side of the Y-axis, so it cannot be confirmed in this figure.

[0043] Figure 8 This is a diagram illustrating the lateral protrusion. Figure 8 The upper section represents the individual unit of installation component 100. Figure 8 The middle section indicates the state in which the mounting component 100 is installed on the temperature measurement area 5A. Figure 8 The lower section indicates the state after the temperature detector 6 is assembled on the mounting component 100. Figure 8 The next paragraph and Figure 7 They are roughly the same. For example... Figure 8 As shown in the upper and middle sections, before the mounting member 100 is installed into the temperature measurement area 5A, there is a region of the second side 122 that is closer to the positive side of the Z-axis than the first elastic part 101.

[0044] Hereinafter, the region in the second side portion 122 that is further towards the positive Z-axis than the first elastic portion 101 in the state before the temperature detector 6 is assembled will be referred to as the second side protrusion 122P. Furthermore, although in Figure 8 Not shown in the figure, but the area in the first side 121 that is closer to the positive Z-axis than the first elastic part 101 before the temperature detector 6 is assembled is called the first side protrusion 121P. The first side protrusion 121P and the second side protrusion 122P help protect the first elastic part 101 during the installation of the mounting member 100.

[0045] Figure 9 This is a diagram illustrating the first hypotenuse 101D and the second hypotenuse 102D. Figure 9 The upper part and Figure 7 The same applies. Hereinafter, the portion of the first elastic portion 101 that contacts the component portion 61 will be referred to as the first elastic contact portion 101T. The portion of the second elastic portion 102 that contacts the wiring portion 62 will be referred to as the second elastic contact portion 102T. The region between the first base portion 111 and the first elastic contact portion 101T, forming an acute angle with the negative X-axis, will be referred to as the first hypotenuse portion 101D. The region between the second base portion 112 and the second elastic contact portion 102T, forming an acute angle with the negative X-axis, will be referred to as the second hypotenuse portion 102D. However, the angles formed by the first hypotenuse portion 101D and the second hypotenuse portion 102D with the positive X-axis can also be considered obtuse angles.

[0046] Figure 9 The following section is a diagram illustrating the angles formed by the first hypotenuse 101D and the second hypotenuse 102D with the X-axis. The first positive angle θ1P is the angle formed by the first hypotenuse 101D with the positive side of the X-axis. The first negative angle θ1N is the angle formed by the first hypotenuse 101D with the negative side of the X-axis. The second positive angle θ2P is the angle formed by the second hypotenuse 102D with the positive side of the X-axis. The second negative angle θ2N is the angle formed by the second hypotenuse 102D with the negative side of the X-axis. Both the first positive angle θ1P and the second positive angle θ2P are obtuse angles, i.e., angles greater than 90 degrees. Both the first negative angle θ1N and the second negative angle θ2N are acute angles, i.e., angles less than 90 degrees.

[0047] Figure 10 This diagram illustrates the effect of the elastic element. After the mounting member 100 is installed on the temperature measurement area 5A, the temperature detector 6 is fixed to the temperature measurement area 5A by the mounting member 100. Specifically, as... Figure 10 As shown in the upper section, the temperature detector 6 is inserted from the negative side of the X-axis between the first elastic portion 101 and the second elastic portion 102 of the mounting member 100, on which the temperature measurement area 5A is mounted, and the temperature measurement area 5A. At this time, the top end of the element portion 61 contacts the first inclined portion 101D and the second inclined portion 102D.

[0048] like Figure 10 As shown in the lower left, when the temperature detector 6 is brought into contact with the first inclined side 101D of the first elastic part 101 using an insertion force F1, the first inclined side 101D generates a vertical load F2 and an upward pushing load F3. The first elastic part 101 is lifted in the positive Z-axis direction due to this load F3, creating a gap that allows the temperature detector 6 to be inserted. Similarly, the second elastic part 102 also generates a load F3 using the insertion force F1, pushing the second inclined side 102D upward, creating a gap that allows the temperature detector 6 to be inserted.

[0049] According to the above implementation method, the following effects can be obtained.

[0050] (1) The rotary electric motor 1 includes: a rotor 2; an annular stator core 3 arranged to surround at least a portion of the rotor 2; a stator winding 4 wound on the stator core 3; a busbar 5 connected to the stator winding 4; a temperature measurement zone 5A disposed on any one of the busbars 5; a temperature detector 6 having an element portion 61 disposed in contact with the temperature measurement zone 5A and a wiring portion 62 connected to the element portion 61; and a mounting member 100 for mounting the temperature detector 6 to the temperature measurement zone 5A. Figure 6 and Figure 7 As shown, the element portion 61 and the temperature measurement area 5A are arranged in the Z-axis direction. The mounting member 100 includes: a first elastic portion 101, which applies force to the surface of the element portion 61 that is approximately perpendicular to the Z-axis direction, i.e., the first surface 61A of the element, in the negative direction of the Z-axis where the temperature measurement area 5A is arranged; a first base portion 111, which is a surface approximately parallel to the first surface 61A of the element and is connected to the first elastic portion 101; and a first side portion 121 and a second side portion 122, which clamp the element portion 61 from both sides in the Y-axis direction and are not attached to the element portion 61. The element part 61 is in contact with and connected to the first base 111, wherein the Y-axis direction is orthogonal to the Z-axis direction and is the width direction of the element part 61; and the first leg 131 and the second leg 132 are connected to the first side 121 and the second side 122, respectively, and are in contact with the temperature measurement area 5A from the opposite direction to the element part 61, i.e., the negative side of the Z-axis, and together with the first elastic part 101, clamp the element part 61 and the temperature measurement area 5A from both sides in the Z-axis direction. Therefore, the temperature detector 6 and the temperature measurement area 5A can be stably fixed by the mounting member 100.

[0051] (2) The cross-sectional shape of the temperature-measuring area 5A in the YZ plane is rectangular, having a first temperature-measuring surface 5A1 that contacts the temperature detector 6 and a second temperature-measuring surface 5A2 opposite to the first temperature-measuring surface 5A1. The first leg 131 and the second leg 132 include: a first straight section 131S and a second straight section 132S that contact the end of the second temperature-measuring surface 5A2 in the Y-axis direction; and a first return section 131R and a second return section 132R that fold back from the first straight section 131S and the second straight section 132S and abut against the second temperature-measuring surface 5A2. Therefore, as Figure 6 As shown, the mounting member 100 holds the temperature measurement area 5A and the temperature detector 6 not only from both sides of the Z-axis direction but also from both sides of the Y-axis direction, thus ensuring a secure fixation. Furthermore, by using a relatively soft metal such as copper for the busbar 5 and a material with a higher hardness than the busbar 5 in the mounting member 100, the first return portion 131R and the second return portion 132R of the mounting member 100 engage with the lower surface of the temperature measurement area 5A, generating a stronger fixing force.

[0052] (3) The first side portion 121 and the second side portion 122 have a first side portion protrusion 121P and a second side portion protrusion 122P at their ends on the positive side in the Z-axis direction. The first side portion protrusion 121P and the second side portion protrusion 122P protrude further in the positive Z-axis direction than the first elastic portion 101 in the state before holding the temperature measurement area 5A and the element portion 61.

[0053] (4) The first side portion 121 and the second side portion 122 have a first side portion protrusion 121P and a second side portion protrusion 122P on both sides in the Y-axis direction. The first elastic portion 101 is disposed between the first side portion protrusion 121P and the second side portion protrusion 122P.

[0054] (5) The first side portion 121 and the second side portion 122 are separately configured from the temperature detector 6. Therefore, the element portion 61 can measure the temperature of the temperature-measuring area 5A with high accuracy and good response.

[0055] (6) The mounting member 100 has a second elastic part 102 that applies force to the wiring section 62 in the negative direction of the Z-axis. Therefore, the swaying of the wiring section 62 can be suppressed, and the temperature measurement performance can be improved.

[0056] (7) The first elastic portion 101 has a first inclined portion 101D between the first elastic contact portion 101T that contacts the component portion 61 and the first base portion 111. The second elastic portion 102 has a second inclined portion 102D between the second elastic contact portion 102T that contacts the wiring portion 62 and the second base portion 112. The angles formed by the first inclined portion 101D and the second inclined portion 102D with the positive side of the X-axis are both acute angles. Therefore, as shown in the reference... Figure 10As explained, the temperature detector 6 is inserted from the negative side of the X-axis, thereby generating a load F3 by utilizing the insertion force F1 of the temperature detector 6 to push the first inclined portion 101D and the second inclined portion 102D towards the positive side of the Z-axis, allowing for smooth insertion. This improves operability and prevents damage to the first elastic portion 101 and the second elastic portion 102.

[0057] (Variation Example 1)

[0058] Figure 11 This diagram illustrates the arrangement of component portion 61 in Modified Example 1. In the above embodiment, component portion 61 is disposed approximately at the center of the first side portion 121 and the second side portion 122 in the Y-axis direction, and component portion 61 does not contact the first side portion 121 and the second side portion 122. However, component portion 61 may also be disposed outside the approximately center of the first side portion 121 and the second side portion 122 in the Y-axis direction. For example, as... Figure 11 As shown, the component portion 61 can be arranged close to the first side portion 121, and conversely, the component portion 61 can also be arranged close to the second side portion 122.

[0059] (Variation Example 2)

[0060] Figure 12 This is a diagram showing the shape of the side portion in Modified Example 2. In the above embodiment, the first side portion 121 and the second side portion 122 respectively have a first side portion protrusion 121P and a second side portion protrusion 122P protruding towards the positive Z-axis. However, the first side portion protrusion 121P and the second side portion protrusion 122P may not be present. Figure 12 The upper part indicates the individual installation component 100 that is installed before the temperature measurement area 5A. Figure 12 The lower section is a diagram showing the state after the mounting component 100 is installed in the temperature measurement area 5A and the temperature detector 6. In this modified example, as... Figure 12 As shown in the previous paragraph, even for a single mounting member 100, if we compare the position of the most positive side of the Z-axis in the first elastic portion 101 with the positions of the most positive sides of the Z-axis in the first side portion 121 and the second side portion 122, the first elastic portion 101 is closer to the positive side. That is, in this modified example, the mounting member 100 does not have the first side protrusion 121P and the second side protrusion 122P.

[0061] (Variation Example 3)

[0062] In the above embodiment, the temperature measurement area 5A is located on the busbar 5. However, the temperature measurement area 5A can also be located on any one of the rotor 2, stator core 3, stator winding 4, and busbar 5. In addition, the temperature measurement area 5A does not need to be a specially set area for temperature measurement; it is sufficient if the cross-section is approximately rectangular.

[0063] (Variation Example 4)

[0064] In the above embodiment, the angles formed by the first inclined side 101D and the second inclined side 102D with the positive side of the X-axis are both acute angles. However, the angles formed by the first inclined side 101D and the second inclined side 102D with the positive side of the X-axis can both be obtuse angles. In this case, the temperature detector 6 is preferably inserted from the positive side of the X-axis to the negative side of the X-axis.

[0065] (Variation Example 5)

[0066] In the above embodiment, the mounting member 100 includes a first elastic portion 101 and a second elastic portion 102. However, the mounting member 100 may also have only the first elastic portion 101 and not the second elastic portion 102.

[0067] The above-described embodiments and modifications can also be combined separately. Various embodiments and modifications have been described above, but the present invention is not limited to these. Other methods considered within the scope of the technical concept of the present invention are also included within the scope of the present invention.

[0068] Symbol Explanation

[0069] 1: Rotary motor

[0070] 5: Busbar

[0071] 5A: Temperature measurement area

[0072] 6: Temperature detector

[0073] 61: Components Section

[0074] 62: Cabling Department

[0075] 100: Installation components

[0076] 101: First elastic part

[0077] 101D: First hypotenuse

[0078] 101T: First elastic contact part

[0079] 102: Second elastic part

[0080] 102D: Second hypotenuse

[0081] 102T: Second elastic contact part

[0082] 111: First base

[0083] 112: Second base

[0084] 113: Third base

[0085] 121: First side

[0086] 121P: First lateral protrusion

[0087] 122: Second side

[0088] 122P: Second lateral protrusion

[0089] 131: First leg

[0090] 131R: Part 1 (Return)

[0091] 131S: First straight section

[0092] 132: Second leg

[0093] 132R: Part 2

[0094] 132S: Second straight section.

Claims

1. A rotary electric machine characterized by comprising: Possessing: a rotor; a ring-shaped stator core configured so as to surround at least a portion of the rotor; a stator winding wound on the stator core; a bus to which the stator winding is connected; a temperature measurement region provided on any one of the rotor, the stator core, the stator winding, and the bus; a temperature detector having an element portion abuttingly arranged with the temperature measurement region, and a wiring connected with the element portion; and a mounting member for mounting the temperature detector at the temperature measurement region, the element portion and the temperature measurement region are arranged in the Z-axis direction, the mounting member possesses: a first elastic portion that exerts a force on a first face of the element portion, which is a face of the element portion that is substantially perpendicular to the Z-axis direction, in a negative direction of the Z-axis in which the temperature measurement region is arranged; a first base portion that is a face substantially parallel to the first face of the element portion, connected with the first elastic portion; a side portion arranged on both sides in a Y-axis direction that is a direction orthogonal to the Z-axis direction and is a width direction of the element portion, connected with the first base portion; and a leg portion connected with the side portion, in contact with the temperature measurement region from a direction opposite to the element portion, sandwiching the element portion and the temperature measurement region from both sides in the Z-axis direction together with the first elastic portion.

2. The rotary electric machine according to claim 1, wherein a cross-sectional shape of the temperature measurement region is rectangular, having a first temperature measurement face in contact with the temperature detector, and a second temperature measurement face opposite to the first temperature measurement face, the leg portion possesses the straight portion in contact with an end portion of the second temperature measurement face in the Y-axis direction, and a return portion that turns back from the straight portion and abuts against the second temperature measurement face.

3. The rotary electric machine according to claim 1, wherein the side portion possesses a side portion protruding portion at an end portion in the Z-axis direction, the side portion protruding portion protruding more in a positive direction of the Z-axis than the first elastic portion in a state before gripping the temperature measurement region and the element portion.

4. The rotary electric machine according to claim 3, wherein the side portion possesses the side portion protruding portion on both sides in the Y-axis direction, the first elastic portion is arranged between the side portion protruding portions.

5. The rotary electric machine according to claim 1, wherein the side portion is arranged separately from the temperature detector.

6. The rotary electric machine according to claim 1, wherein the mounting member further possesses a second elastic portion that exerts a force on the wiring portion in a negative direction of the Z-axis.

7. The rotary electric machine according to claim 6, wherein the first elastic portion has a first bevel portion between a first elastic contact portion in contact with the element portion and the first base portion, the second elastic portion has a second bevel portion between a second elastic contact portion in contact with the wiring portion and the second base portion, the first bevel portion and the second bevel portion each form an acute angle with a positive side of the X-axis, or each form an acute angle with a negative side of the X-axis. ​

Citation Information

Patent Citations

  • Stator for rotary electric machine

    JP2020054103A